ASP.Net Core 2.0 and logging

Question

I generated a new project for ASP.Net Core 2.0. Added this code in Program.cs:

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) { loggerFactory.AddConsole(); ...

Then I go to the folder containing the project and run dotnet run:

Hosting environment: Development Content root path: C:\Users\arthur\Source\Repos\WebApplication5\WebApplication5 Now listening on: http://localhost:3000 Application started. Press Ctrl+C to shut down

While navigating the site I want to see the logs generated by framework but I see nothing. Though if I generate ASP.Net Core 1.1 web project the lines with logging are already in Program.cs and I see the logs:

info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1] Request starting HTTP/1.1 GET http://localhost:53680/ info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1] Executing action method WebApplication3.Controllers.HomeController.Index (WebApplication3) with arguments ((null)) - ModelState is Valid

What am I missing?

as per MSDN you need to add .AddDebug(); to program.cs if you want core to log the changes, but you need to use log LogWarning``LogInformation to log things you want. learn.microsoft.com/en-us/aspnet/core/fundamentals/logging — Just code
– Just code, Commented Jul 13, 2017 at 15:57
AddDebug() just adds logging to debug console of visual studio, with Log[Level] you just log what you want to log and I am interested in logs produced by ASP.Net itself, like ` Executing action method WebApplication3.Controllers.HomeController.Index (WebApplication3) with arguments ((null)) - ModelState is Valid` — hasrthur
– hasrthur, Commented Jul 13, 2017 at 16:25
Did you check learn.microsoft.com/en-us/aspnet/core/fundamentals/… — Just code
– Just code, Commented Jul 13, 2017 at 16:41

hasrthur · Accepted Answer · 2017-07-13 17:02:02Z

7

Ok, I feel a bit stupid now, but to achieve what I wanted I had to change LogLevel of Debug and Console in appsettings.json to something lower that Warning

answered Jul 13, 2017 at 17:02

hasrthur

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1 Comment

officer Over a year ago

You could also add a file appsettings.Development.json to overwrite the LogLevel only for the Development environment. The method CreateDefaultBuilder in Program.cs automatically adds the configurations for the current environment.

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